Schedule of Borrowings (Parenthetical) (Detail)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
4.2% Senior Notes
Debt Instrument [Line Items]
Stated interest rate	4.20%		4.20%
Senior Notes, maturity date	2021-12	2021-12
4.5 % Senior Notes
Debt Instrument [Line Items]
Stated interest rate	4.50%
Senior Notes, maturity date	2020-12	2020-12
2.58% Senior Euro Notes
Debt Instrument [Line Items]
Stated interest rate	2.58%
Senior Notes, maturity date	2015-06	2015-06